(single tank) 40 Grit White Aluminum Oxide Sandblasting Media 4.5lbs. High quality 50 Micron ANSI & FEPA certified blast media. Aluminum Oxide is ideal for cutting, drilling, deburring, surface preparation, devesting, and texturing. VanOxide is an excellent and versatile abrasive media. Our sandblast media is sieved and sifted multiple times resulting in reliable blasting results. - 4.5Lbs - 50 Micron/240 Grit - Mohs Hardness: 9 - 99.8% Purity - ANSI & FEPA Certified - High Quality White Fused Aluminum Oxide